Wireless Headphone Receiver

Features:1. Long distance transmission. The stereo audio can be transmitted in over 100 meters open area (no obstacle, the test is under static status)
2. Supporting point to point and point to mass transmission modes and unlimited receivers.
3. Up to 20 selectable channels, simply to avoid interference. The item works in 2.4GHz ISM (namely Industry, Science, Medicine) band, with 20 channels for selection, meeting the needs of Multi-frequency and frequency hopping. If there is strong noise and interfere in the current channel, users just change a new channel to get a good effect.
4. The shortest latency. The latency of audio wireless transmission < 0.5ms, which is the top standard in the industry.
5. The highest audio sampling ratio 64K, Hi-Fi HDCD sound quality
6. 20Hz ~20 KHz frequency response. Please note that it's an actual test data, quite different from some products in the markets which don't meet this standard but be marked with exaggerated advertisement.
7. Ultra-low power consumption design. The lowest power consumption provided in the industry, the transmitter current can be adjusted from 40mA -110mA directly according to users' request, the receiver current is lower than 35mA and the current is less than 5mA in standby.
8. Be equipped with high capability Lithium-ion rechargeable battery, charger offered, it can work for more than 30hours after each full charge.
9. World's first output mode compatible with microphone and stereo audio.
Applications@ Multimedia classroom
@ Education and teaching
@ Wireless audio transmission of speaker system
@ Wireless audio transmission in engineering control
@ CD, DVD players or other musical instruments
@ Wireless simultaneous interpretation system
@ Wireless loudspeaker
@ Wireless microphone
NO.DescriptionTransmitter moduleReceiver module1Work voltage3.6- 6V DC2.5 - 3.6V DC2Work electric currentMax 120mAMax 35mA3Work temperature-15 - +65-15 - +654Frequency response2400 - 2483 MHz2400 - 2483 MHz5ModulationGFSK6Baud rate2M bps2M bps7Channel space4MHz4MHz8Stabilization of frequency+/-156KHz+/-156KHz9Work frequency range2400 - 2483 MHz2400 - 2483 MHz10Work channel20 CH20 CH11Channel space of module4MHz4MHz12Output power0-20 dBm13Receiver sensitivity90dBm14Input powerMax 1.0Vrms15Input impedance10k Ohm16Input modeTwo input modes:
1. Microphone
2. Stereo audio17Stereo output 130mW RL = 32Ω18Stereo output 250mW RL = 16Ω19Output impedance1k Ohm20RF Distance100-150 meters in the open area under 20dBm21Output input gain ratio1:122Frequency response20 - 20000Hz ( +/1dB )23The latency time< 0.5 ms24Sampling ratio64kHz@16 bit*225SNR95 dB26Distortion0.8%@1kHz27Dynamic range90dB28Separation between the left and right track70 dB